Harris is a national mechanical contractor founded in 1948 and headquartered in St. Paul, Minnesota. The company provides a range of services including design, engineering, construction, building automation, manufacturing, and conveyor systems. It operates from twelve offices across the United States and is consistently ranked among the top ten mechanical firms nationally.
In 2020, Harris unified nineteen companies across the country under a single brand. Its technical capabilities span mechanical contracting, building automation, virtual design and construction, prefabrication, and modular MEP systems. The company serves clients in commercial, industrial, and institutional sectors, including projects for stadiums, hospitals, power plants, and manufacturing facilities.
Harris positions itself as offering end-to-end building systems solutions. Its service model covers the full lifecycle of mechanical systems, from initial design and engineering through construction, ongoing maintenance, and manufacturing. The company states it maintains the culture and customer focus of a local business while operating at a national scale.





